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From: mike.looijmans@topic.nl
To: openembedded-core@lists.openembedded.org
Cc: MiLo <milo-software@users.sourceforge.net>
Subject: [PATCH v2] gcc: Enable OpenMP compiling and library
Date: Mon, 21 Jan 2013 09:46:59 +0100	[thread overview]
Message-ID: <1358758019-21074-1-git-send-email-mike.looijmans@topic.nl> (raw)

From: MiLo <milo-software@users.sourceforge.net>

Multicore embedded systems are getting more and more common.

Remove "--disable-openmp" from the GCC configuration options and
always build libgomp. This only creates a "bigger" compiler but
has no effect on the compiled binaries that don't use openmp.

Tested a clean build on mips32el and arm7a, no problems encountered.

Autoconf will not detect OpenMP after this change, because it will
build and run a target binary on the build system. In order to use
OpenMP, the variable ac_cv_prog_c_openmp=-fopenmp must be set.
---
 meta/recipes-devtools/gcc/gcc-4.7.inc              |    1 -
 .../recipes-devtools/gcc/gcc-configure-runtime.inc |    4 +---
 2 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/meta/recipes-devtools/gcc/gcc-4.7.inc b/meta/recipes-devtools/gcc/gcc-4.7.inc
index 08a0103..2548f84 100644
--- a/meta/recipes-devtools/gcc/gcc-4.7.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.7.inc
@@ -88,7 +88,6 @@ JAVA = ""
 EXTRA_OECONF_BASE = " --enable-lto \
 			--enable-libssp \
 			--disable-bootstrap \
-			--disable-libgomp \
 			--disable-libmudflap \
 			--with-system-zlib \
 			--with-linker-hash-style=${LINKER_HASH_STYLE} \
diff --git a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
index d40383c..1c9155f 100644
--- a/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
+++ b/meta/recipes-devtools/gcc/gcc-configure-runtime.inc
@@ -7,9 +7,7 @@ EXTRA_OECONF_PATHS = " \
     --with-sysroot=${STAGING_DIR_TARGET} \
     --with-build-sysroot=${STAGING_DIR_TARGET}"
 
-RUNTIMETARGET = "libssp libstdc++-v3"
-RUNTIMETARGET_append_powerpc = " libgomp"
-RUNTIMETARGET_append_powerpc64 = " libgomp"
+RUNTIMETARGET = "libssp libstdc++-v3 libgomp"
 #  ?
 # libiberty
 # libmudflap
-- 
1.7.5.4




                 reply	other threads:[~2013-01-21  9:02 UTC|newest]

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